Home / 919,963.55-1,269,549.76-512,056.61

Finding the Fourth Proportional to 919,963.55, 1,269,549.76 and 512,056.61

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Solution

The fourth proportional to 919,963.55, 1,269,549.76 and 512,056.61 is: 706,638.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,963.55 : 1,269,549.76 = 512,056.61 : x
  2. Step 2: Convert to fraction form
    919,963.55/1,269,549.76 = 512,056.61/x
  3. Step 3: Cross multiply
    919,963.55x = 1,269,549.76 × 512,056.61
  4. Step 4: Simplify right side
    919,963.55x = 650,081,346,331.91
  5. Step 5: Solve for x
    x = 650,081,346,331.91/919,963.55
  6. Step 6: Final answer
    x = 706,638.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.